Tax Year Prior to 2020: Why wouldn't an employer withhold federal taxes from my paycheck? Fica, medFica, state taxes were withheld, but federal weren't. I filed 0 on my w-4.

[KarenL2]

If you filed "exempt", on your W-4, then no federal income taxes would be withheld.  If you entered zero, then some should have been withheld.  However, it may depend on how much you earned in a pay period.  You will want to talk to your employer, and also check your paystubs to confirm.

Also, to change it for 2017, you can file a new W-4 form with your employer.

[edited 2/2/2017]

[KarenL2]

The answer above has been edited on 2/2/2017.